2,2’,4,4’-Tetrahydroxybenzophenone CAS 131-55-5

Purity >95%In StockPharmaceutical Standards
CAS No.131-55-5
Molecular FormulaC13H10O5
Molecular Weight246.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,2’,4,4’-Tetrahydroxybenzophenone CAS 131-55-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 246.22 g/mol gives 2,2’,4,4’-Tetrahydroxybenzophenone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2,2’,4,4’-Tetrahydroxybenzophenone (CAS 131-55-5), molecular formula C13H10O5 and molecular weight 246.22 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2,2’,4,4’-Tetrahydroxybenzophenone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 246.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), 2,2’,4,4’-Tetrahydroxybenzophenone meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC13H10O5
Molecular Weight246.22 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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Why CATO?